Do Cable Makers Know Their Own Products?

Like most of you, I have owned cables from many different manufacturers. How many of these cables are truly distinct from similar products put out by competing manufacturers? In my experience, there are some truly distinct cables out there but most fall into a gray area when they meet my system.

I was wondering if manufacturers would be able to recognize their own cables if they were put in a room with a high end system with someone conducting true A/B testing. For the sake of argument, let's say we put 5 top manufacturers in a room to test their top interconnects, speaker cables and power cords -- and their next-to-top interconnects, speaker cables and power cords. That means 5 manufacturers listening to 10 models of each cable. Before the testing begins we give them an hour to get used to the sound of this system. Would they be able to pick out their own cables?